EP3913935B1 - Indicating information from a first integrated access and backhaul, iab, base station whether access of an other iab base station is allowable - Google Patents
Indicating information from a first integrated access and backhaul, iab, base station whether access of an other iab base station is allowable Download PDFInfo
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- EP3913935B1 EP3913935B1 EP19914833.9A EP19914833A EP3913935B1 EP 3913935 B1 EP3913935 B1 EP 3913935B1 EP 19914833 A EP19914833 A EP 19914833A EP 3913935 B1 EP3913935 B1 EP 3913935B1
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- iab base
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- 238000004891 communication Methods 0.000 claims description 23
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
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- 230000006870 function Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
Definitions
- the present disclosure relates to the field of communication technologies, and more particularly, to information indication methods, information indication devices, a communication system and a computer-readable storage medium.
- An IAB (integrated access and backhaul) base station integrates a radio access link and a radio backhaul link.
- the radio access link is a communication link between a UE (user equipment) and the IAB base station
- the radio backhaul link is a communication link between the IAB base station and another IAB base station for data backhaul.
- the IAB base station controls the UE's access through access indication information of a cell status, but there is no related technical record regarding how to control the IAB base station. Therefore, how to control the IAB base station has become a hot research topic.
- Embodiments of the present disclosure provide information indication methods, information indication devices, a communication system and a computer-readable storage medium which can solve the problem of how to control an IAB base station.
- an information indication method which is performed by a first integrated access and backhaul base station as set out in claim 1.
- Optional features are set out in claim 2.
- an information indication method which is performed by a second integrated access and backhaul base station as set out in claim 3.
- Optional features are set out in claim 4.
- an information indication device which is configured in a first integrated access and backhaul base station as set out in claim 5.
- an information indication device which is configured in a second integrated access and backhaul base station as set out in claim 6.
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether access of an other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- Backhaul link may be also referred as to a radio backhaul link, which means a communication link between IAB base stations for data backhaul.
- Broadcast information is information carried by a physical broadcast channel (PBCH), and includes master information block ( MIB) information from a higher layer and 8-bit information from layer 1.
- PBCH physical broadcast channel
- MIB master information block
- the layer 1 is generally understood as a physical layer.
- MIB information has a total of A bits (where A is a positive integer), includes a part of information required by a device (such as a UE) to access a base station, such as cellbarred, etc., where the cellbarred is used for indicating an access control status of a cell.
- the MIB information includes 6-bit system frame number (SFN), 1-bit sub-carrier spacing information, 4-bit sub-carrier offset of synchronization signal block (SSB), demodulation reference signal (DMRS) related information, resource information for scheduling a physical downlink control channel (PDCCH) of system information block (SIB), and the like.
- the MIB information also includes an idle bit.
- the MIB information is specifically defined as follows:
- the 8-bit information of layer 1 refers to information of the information carried by the PBCH other than MIB.
- bits where the 8-bit information is located are recorded as a A , a A +1 a A +2 , a A +3 ,..., a A +7 .
- information in a A , a A +1 a A +2 , a A +3 is used for indicating the lowest 4 bits of SFN;
- information in a A +4 is half-frame indication information, that is, indicating whether the bit is a first half frame or a second half frame.
- a A +5 , a A +6 , a A +7 is the highest 3 bits of the PBCH numbers; otherwise, when the system frequency band is less than 6GHz, that is, L SSB is less than 64, information related to the layer 1 has 2-bit reserved bits. Specifically, a A +5 is the highest bit of parameter k SSB and a A +6 , a A +7 are the reserved bits. L SSB is the maximum number of SSBs, and k SSB is the subcarrier offset information of the SSB. For ease of description, the bits where the 8-bit information of the layer 1 is located may be referred to as additional bits.
- System information is another part of the information required for the device to access the base station, that is, constituting all the information required for the device to access the base station with the MIB information.
- the system information may be SIB 1 information.
- the SIB 1 information includes two parameters of cellReservedForOperatorUse and cellReservedForOtherUse.
- the two parameters of cellReservedForOperatorUse and cellReservedForOtherUse and the cellBarred in the MIB information may commonly be used for determining an access control status of a cell, or may be used by the UE to determine whether the IAB base station may be accessed.
- An IAB base station refers to a base station that provides a user with radio access, which usually needs a backhaul link to be connected to a core network or other IAB base stations for data backhaul. That is, the IAB base station may support UE to access, and may also support other IAB base stations to access.
- radio backhaul such as microwave backhaul.
- network capacity, complexity, and delay requirements are gradually increasing, and the number of mobile base stations is gradually increasing. Therefore, an application range of the radio backhaul is gradually expanding, making the IAB base station easier to be deployed in dense and complex scenarios, and reducing burden of deploying wired transmission networks.
- the embodiments of the present disclosure provide an information indication method, and the information indication method may individually control the access of the IAB base station, that is, the access control of the IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station. A specific implementation thereof will be described with reference to the following embodiments.
- FIG. 1 is a schematic diagram showing an implementation environment according to an exemplary embodiment, and referring to FIG. 1 ,the implementation environment includes multiple IAB base stations 110 and UEs 120.
- Each IAB base station 110 can perform data communication with the served UE 120 through a radio access link, and the multiple IAB base stations 110 can perform the data backhaul through a radio backhaul link.
- an IAB base station of the multiple IAB base stations 110 that provides a radio backhaul function to other IAB base stations is referred to as a first IAB base station, and the other IAB base stations wirelessly connected to the first IAB base station are referred to as a second IAB base station.
- FIG. 2 is a flowchart showing an information indication method according to an exemplary embodiment.
- the information indication method may include the following implementation steps.
- a first IAB base station sends indication information, wherein the indication information is used for indicating whether access of an other IAB base station is allowable.
- sending, by the first IAB base station, the indication information may include: sending, by the first IAB base station, at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information.
- the first IAB base station may carry the indication information through at least one of the system information and the broadcast information.
- the first IAB base station may carry the indication information only through the system information, or may carry the indication information only through the broadcast information, or may carry the indication information through the system information and the broadcast information.
- the system information may be SIB 1 information.
- the broadcast information may be information carried by a PBCH channel.
- sending, by the first IAB base station, the indication information may include: broadcasting, by the first IAB base station, the indication information. That is, the first IAB base station may send the indication information in a broadcast manner, so that the other IAB base station that can listen to the indication information may determine whether to access the first IAB base station according to the indication information.
- a second IAB base station receives the indication information, wherein the indication information is used for indicating whether access of an other IAB base station is allowable.
- the second IAB base station receiving the indication information may include: receiving at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information
- the second IAB base station receives the system information.
- the second IAB base station receives the broadcast information.
- the second IAB base station receives the system information and the broadcast information.
- the second IAB base station may periodically listen to the indication information to receive the indication information. That is, the indication information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs, which is not limited in the embodiment of the present disclosure.
- the second IAB base station determines whether to access the first IAB base station based on the indication information.
- the second IAB base station determines that the first IAB base station may be accessed; otherwise, when the indication information indicates that the access of the other IAB base station to the first IAB base station is not allowable, the second IAB base station determines that the first IAB base station may not be accessed.
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base stations are individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- the first IAB base station sends at least one of the system information and the broadcast information to carry the indication information through the at least one of the system information and the broadcast information, which means that the first IAB base station may carry the indication information only through the system information, or may carry the indication information only through the broadcast information, or may carry the indication information through the system information and the broadcast information.
- the following specific examples will be described respectively.
- FIG. 3 is a flowchart showing an information indication method according to an exemplary embodiment.
- the information indication method may include the following steps.
- the first IAB base station sends the system information, wherein the system information includes a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use.
- the first IAB base station broadcasts the indication information, that is, the indication information may be sent in the broadcast manner.
- the system information may be the SIB 1 information.
- the first parameter may be cellReservedForOperatorUse
- the second parameter may be cellReservedForOtherUse.
- the first IAB base station sends the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the MIB information includes first cell barring information.
- MIB master information block
- the first IAB base station broadcasts the broadcast information, that is, the first IAB base station may send the broadcast information in the broadcast manner.
- the first IAB base station may send the system information and the broadcast information separately at different times, or may send the system information and the broadcast information at the same time, which is not limited by the embodiments of the present disclosure.
- the first cell barring information may be cellbarred, which is used for indicating an access control status of the cell.
- At least one of the first parameter and the second parameter and the first cell barring information constitute the indication information. Further, when content of the at least one of the first parameter and the second parameter and content of the first cell barring information satisfy a first reference condition, the indication information is used for indicating that the access of the other IAB base station is allowable; and when the content of the at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the first reference condition, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- At least one of the cellReservedForOperatorUse and cellReservedForOtherUse and the cellbarred may be used to form the indication information, and in the implementation, it may be indicated whether the access of the other IAB base station is allowable according to whether the content of the at least one of cellReservedForOperatorUse and cellReservedForOtherUse and the content of cellbarred satisfy the first reference condition.
- the first reference condition may include at least one of the following situations:
- the indication information is used for indicating that the access of the other IAB base station is allowable. Otherwise, when the content of at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the above six situations, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- the indication information is used for indicating that the access of the other IAB base station is allowable.
- the indication information is used for indicating that the access of the other IAB base station is allowable.
- the indication information is used for indicating that the access of the other IAB base station is allowable.
- the embodiment does not need to add new information additionally, but uses the parameters cellbarred, cellReservedForOtherUse, and cellReservedForOperatorUse that have been used in the communication technologies related to the cell status to form the indication information, that is, uses an undefined combination form to indicate whether the access of the other IAB base station is allowable.
- the independent control of the IAB base station is realized without affecting the access control of the UE, which and downward compatibility with the existing communication system is ensured.
- the first reference condition includes at least one of the above several situations, that is, it only takes an example in which the indication information is used for indicating that the access of the other IAB base station is allowable when at least one of the first parameter and the second parameter and the first cell barring information satisfy at least one of the above several situations.
- at least one of the above several situations may also be used for indicating that the access of the other IAB base station is not allowable, that is, in a specific implementation scenario, the above several situations may be set according to actual needs to indicate whether the access of the other IAB base station is allowable, which is not limited in the embodiments of the present disclosure.
- At least one of the situations included in the first reference condition is only exemplary. In the implementation, other combinations may be used to indicate whether the access of the other IAB base station is allowable without affecting the access of the UE.
- step 303 the second IAB base station receives the system information.
- the second IAB base station may receive the broadcast information in a manner in which periodical listening is performed. That is, the system information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs.
- step 304 the second IAB base station receives the broadcast information.
- the second IAB base station may receive the broadcast information in a manner in which periodical listening is performed. That is, the broadcast information broadcast by the first IAB base station can be listened to every reference duration.
- the second IAB base station may receive the system information and the broadcast information respectively at different times, or may receive the system information and the broadcast information at the same time, which is not limited by the embodiments of the present disclosure.
- the second IAB base station reads the at least one of the first parameter and the second parameter and the first cell barring information to obtain the indication information.
- the second IAB base station When the first IAB base station uses the first parameter and the first cell barring information to form the indication information, the second IAB base station reads the first parameter and the first cell barring information. When the second parameter and the first cell barring information are used to form the indication information, the second IAB base station reads the second parameter and the first cell barring information. When the first parameter, the second parameter, and the first cell barring information are used to form the indication information, the second IAB base station reads the first parameter, the second parameter, and the first cell barring information.
- the second IAB base station determines whether to access the first IAB base station based on the indication information.
- the second IAB base station determines that the first IAB base station may be accessed; otherwise, when the indication information indicates that the access of the other IAB base station to the first IAB base station is not allowable, the second IAB base station determines that the first IAB base station may not be accessed.
- the second IAB base station determines that it can access the first IAB base station.
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station are individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- FIG. 4 is a flowchart showing an information indication method according to another exemplary embodiment.
- the information indication method may include the following implementation steps.
- a first IAB base station sends broadcast information, wherein the broadcast information includes master information block (MIB) information, and the indication information is located in the MIB information.
- MIB master information block
- the indication information is located in an idle bit of the MIB information.
- the MIB information includes a 1-bit idle bit. Therefore, the indication information may be added to the idle bit.
- the indication information can be expressed as cellBarred-IAB.
- the indication information may be defined in a standard as: cellBarred-IAB ENUMERATED ⁇ barred, notBarred ⁇ .
- idle bit in the MIB information may reduce the impact on the information used in the communication technologies.
- the foregoing implementation is only exemplary.
- other information in the MIB information may also be used as the indication information, which is not limited in the embodiments of the present disclosure.
- a second IAB base station receives the broadcast information.
- the second IAB base station may receive the broadcast information in a manner in which periodical listening is performed. That is, the system information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs.
- step 403 the second IAB base station reads the indication information in the MIB information.
- the second IAB base station may read the indication information from the idle bit in the MIB information.
- the read indication information is cellBarred-IAB.
- the second IAB base station determines whether to access the first IAB base station based on the indication information.
- the second IAB base station determines that the first IAB base station may be accessed; otherwise, when the indication information indicates that the access of the other IAB base station to the first IAB base station is not allowable, the second IAB base station determines that the first IAB base station may not be accessed.
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- FIG. 5 is a flowchart showing an information indication method according to another exemplary embodiment.
- the information indication method may include the following implementation steps.
- a first IAB base station sends system information, wherein the system information includes a first parameter and a second parameter, and the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use.
- the first IAB base station broadcasts the system information, that is, the first IAB base station may send the system information in a broadcast manner.
- the system information may be SIB 1 information.
- the first parameter may be cellReservedForOperatorUse
- the second parameter may be cellReservedForOtherUse.
- the first IAB base station sends broadcast information, wherein the broadcast information includes master information block (MIB) information, the MIB information carries second cell barring information, and the second cell barring information is used for indicating whether the first IAB base station is in an access barred status.
- MIB master information block
- the first IAB base station broadcasts the broadcast information, that is, the first IAB base station may send the broadcast information in the broadcast manner.
- the first IAB base station may send the system information and the broadcast information separately at different times, or may send the system information and the broadcast information at the same time, which is not limited by the embodiments of the present disclosure.
- the second cell barring information may be located in an idle bit of the MIB information, that is, the first IAB base station may add the second cell barring information to the idle bit of the MIB information to indicate whether the first IAB base station is in the access barred status.
- At least one of the first parameter and the second parameter and the second cell barring information of the MIB information constitute the indication information.
- the indication information indicates that the access of the other IAB base station is not allowable.
- the indication information indicates that the access of the other IAB base station is allowable; and when the second cell barring information indicates that the first IAB base station is in the access non-barred status, and the content of the at least one of the first parameter and the second parameter does not satisfy the second reference condition, the indication information indicates that the access of the other IAB base station is not allowable.
- the indication information may indicate that the access of the other IAB base station is not allowable; when the second cell barring information indicates that the first IAB base station is in the access non-barred status, at least one of the first parameter and the second parameter may further be combined to indicate whether the access of the other IAB base station is allowable. Specifically, the indication may be performed according to whether the content of at least one of the first parameter and the second parameter satisfies the second reference condition.
- the second reference condition may be set according to actual needs.
- the first reference condition may include at least one of the following situations:
- the indication information is used for indicating that the access of the other IAB base station is allowable; otherwise, the indication information is used to indicate that the access of the other IAB base station is not allowable.
- the second cell barred information is expressed as cellBarred-IAB
- the first parameter is cellReservedForOperatorUse
- the second parameter is cellReservedForOtherUse.
- the indication information is constituted based on the second cell barring information in conjunction with at least one of the first parameter and the second parameter, which is compatible with the current existing communication technologies and thus reduces the computational cost.
- step 503 the second IAB base station receives the system information.
- the second IAB base station may receive the system information in a manner in which periodical listening is performed. That is, the system information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs.
- step 504 the second IAB base station receives the broadcast information.
- the second IAB base station may receive the broadcast information in a manner in which periodical listening is performed. That is, the broadcast information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs.
- the second IAB base station may receive the system information and the broadcast information separately at different times, or may receive the system information and the broadcast information at the same time, which is not limited by the embodiments of the present disclosure.
- step 505 the second IAB base station reads at least the second cell barring information of the MIB information to obtain the indication information.
- the second IAB base station reads the second cell barring information of the MIB information to obtain the indication information.
- the second cell barring information indicates that the first IAB base station is in the access barred status
- the second cell barring information indicates that the first IAB base station is in the access non-barred status
- at least one of the first parameter and the second parameter is continued to be read to obtain the indication information.
- the second cell barring information indicates that the first IAB base station is in the access barred status
- the indication information indicates that the access of the other IAB base station is not allowable, that is, there is no need to read the two parameters in the system information
- the second cell barring information indicates that the first IAB base station is in the access non-barred status
- the second IAB base station at least reads the second cell barring information of the MIB information, that is, the second cell barring information must be read.
- the indication information of the second cell information it needs to be determined according to the indication information of the second cell information.
- the second cell barring information indicates that the first IAB base station is in the access barred status
- only the second cell barring information needs to be read to determine whether the first IAB allows the other IAB to access. In this way, the number of readings is reduced, and the power consumption of the base station is reduced.
- the second IAB base station determines whether to access the first IAB base station based on the indication information.
- the second IAB base station determines that the first IAB base station may be accessed; otherwise, when the indication information indicates that the access of the other IAB base station to the first IAB base station is not allowable, the second IAB base station determines that the first IAB base station may not be accessed.
- the indication information includes the second cell barring information cellBarred-IAB, the first parameter cellReservedForOperatorUse, and the second parameter cellReservedForOtherUse
- cellBarred-IAB not barred
- cellReservedForOperatorUse not reserved
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- FIG. 6 is a flowchart showing an information indication method according to another exemplary embodiment.
- the information indication method may include the following implementation steps.
- a first IAB base station sends broadcast information, wherein the broadcast information includes an additional bit other than MIB information, and the indication information is located in the additional bit.
- a specific implementation of the first IAB base station sending the broadcast information may include that the first IAB base station broadcasts the broadcast information.
- the first IAB base station may send the broadcast information in a broadcast manner.
- the indication information is located in the information carried by the PBCH channel.
- the additional bits are bits where 8-bit information of layer 1 of the PBCH channel is located, and correspondingly, the indication information is located in the 8-bit information of layer 1 carried by the PBCH channel.
- the indication information may be located in a reserved bit of the additional bits.
- the additional bits include two reserved bits. Therefore, the indication information may be added to the reserved bits.
- the indication information may be expressed as cellBarred-IAB.
- the above-mentioned reference frequency band threshold may be set according to actual requirements.
- the reference frequency band threshold may be 6 GHz and so on.
- idle bit in the additional bits to carry indication information to achieve individual control of the IAB base station may reduce the impact on the information used by the communication technologies.
- the above description is based on adding the indication information in the reserved bits as an example.
- the information on the additional bits that has been used by the communication technologies may also be used as the indication information, which is not limited by the embodiments of the present disclosure.
- step 602 the second IAB base station receives the broadcast information.
- the second IAB base station may receive the broadcast information in a manner in which periodical listening is performed. That is, the system information broadcast by the first IAB base station can be listened to every reference duration.
- the reference duration may be set according to actual needs.
- step 603 the second IAB base station reads the indication information in the additional bit.
- the second IAB base station may read the indication information from the reserved bit of the additional bits.
- the read indication information is cellBarred-IAB.
- the second IAB base station determines whether to access the first IAB base station based on the indication information.
- the second IAB base station determines that the first IAB base station may be accessed; otherwise, when the indication information indicates that the access of the other IAB base station to the first IAB base station is not allowable, the second IAB base station determines that the first IAB base station may not be accessed.
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- the embodiment shown in FIG. 6 is described by taking that the indication information is carried by the additional bit carried by the PBCH as an example.
- the first IAB base station may also add third cell barring information in the additional bit carried by the PBCH, and combines the same and the first and second parameters as the indication information.
- the first IAB base station sends the system information and sends the broadcast information.
- the additional bit of the broadcast information include the third cell barring information, at least one of the first parameter and the second parameter in the system information, and the third cell barring information constitutes the indication information.
- the indication information indicates that the access of the other IAB base station is not allowable. Otherwise, when the third cell barring information indicates that the first IAB base station is in the access non-barred status, at least one of the first parameter and the second parameter may be combined to indicate whether the access of the other IAB base station is allowable.
- the specific implementation thereof is similar to that in the embodiment in FIG. 5 in which at least one of the first parameter and the second parameter and the second cell barring information are used to indicate whether the access of the other IAB base station is allowable.
- the second IAB receives the system information and the broadcast information, and reads at least the third cell barring information in the MIB information to obtain the indication information.
- the second IAB base station reads the third cell barring information of the MIB information, and when the third cell barring information indicates that the first IAB base station is in the access barred status, it is determined that the indication information indicates that the access of the other IAB base station is not allowable; and when the third cell barring information indicates that the first IAB base station is in the access non-barred status, at least one of the first parameter and the second parameter is continued to be read to obtain the indication information, that is, at least one of the first parameter and the second parameter is combined to determine whether the first IAB base station allows the other IAB base station to access.
- the information used in the communication technologies is used to carry the indication information.
- a new high-level signaling may be defined to indicate whether the access of the other IAB base station is allowable.
- the defined new high-level signaling may be carried in information such as SIB 1, and further, the parameters cellBarredForIAB, cellReservedForOperatorUseForIAB, and cellReservedForOtherUseForIAB may be introduced, so that the indication information is formed through these three parameters.
- the cellBarredForIAB may be used for indicating the access control status of the cell
- the cellReservedForOperatorUseForIAB may be used for indicating whether to reserve a cell for operator use
- the cellReservedForOtherUseForIAB may be used for indicating whether to reserve a cell for other uses.
- the reference duration in the foregoing various embodiments may be the same or different, which is not limited in the embodiments of the present disclosure.
- the indication information is added to indicate whether the access of the other IAB base station is allowable, the indication information does not affect the access of the UE, thereby ensuring separate control of the access of the other IAB base station and the access of the UE to achieve downward compatibility with the existing communication system.
- FIG. 7 is a schematic structural diagram showing an information indication device according to an exemplary embodiment.
- the information indication device is configured in a first IAB base station.
- the information indication device may include: a sending module 710, configured to send indication information.
- the indication information is used for indicating whether access of an other IAB base station is allowable.
- the sending module 710 is configured to: send at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information.
- the sending module 710 is configured to:
- At least one of the first parameter and the second parameter and the first cell barring information constitute the indication information.
- the indication information when content of the at least one of the first parameter and the second parameter and content of the first cell barring information satisfy a first reference condition, the indication information is used for indicating that the access of the other IAB base station is allowable; and when the content of the at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the first reference condition, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- the first reference condition includes at least one of the followings:
- the sending module 710 is configured to: send the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the indication information is located in the MIB information.
- MIB master information block
- the sending module 710 is configured to:
- At least one of the first parameter and the second parameter and the second cell barring information of the MIB information constitute the indication information.
- the indication information indicates that the access of the other IAB base station is not allowable
- the second reference condition includes at least one of the followings:
- the sending module 710 is configured to: send the broadcast information, wherein the broadcast information includes an additional bit other than MIB information, and the indication information is located in the additional bit.
- system information is system information block (SIB) 1 information.
- SIB system information block
- the sending module 710 is configured to: broadcast the indication information.
- the first IAB base station sends the indication information. Since the indication information is used for indicating the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- FIG. 8 is a schematic structural diagram showing an information indication device according to an exemplary embodiment.
- the information indication device may be configured in a second IAB base station.
- the information indication device may include:
- the receiving module 810 is configured to: receive at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information.
- the receiving module 810 is configured to:
- the indication information when content of the at least one of the first parameter and the second parameter and content of the first cell barring information satisfy a first reference condition, the indication information is used for indicating that the access of the other IAB base station is allowable; and when the content of the at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the first reference condition, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- the first reference condition includes at least one of the followings:
- the receiving module 810 is configured to:
- the receiving module 810 is configured to:
- the receiving module 810 is configured to:
- the indication information indicates that the access of the other IAB base station is not allowable
- the second reference condition includes at least one of the followings:
- the receiving module 810 is configured to:
- system information is system information block (SIB) 1 information.
- SIB system information block
- the first IAB base station sends the indication information. Since the indication information is used for indicating whether the access of the other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- the information indication device provided in the embodiments implements the information indication method
- only a division of the functional modules is used as an example for illustration.
- the above functions may be allocated to be completed by different functional modules according to needs.
- An internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
- the information indication device and the information indication method embodiments provided in the above embodiments belong to the same concept.
- the specific implementation process of the information indication device please refer to the method embodiments for details, which will not be repeated here.
- FIG. 9 shows a schematic structural diagram of a first IAB base station provided by an exemplary embodiment of the present disclosure.
- the first IAB base station includes: a processor 901, a receiver 902, a transmitter 903, a memory 904, and a bus 905.
- the processor 901 includes one or more processing cores, and the processor 901 executes various functional applications and information processing by running software programs and modules.
- the receiver 902 and the transmitter 903 may be implemented as one communication component, and the communication component may be a communication chip.
- the memory 904 is connected to the processor 901 through the bus 905.
- the memory 904 may be configured to store at least one instruction, and the processor 901 is configured to execute the at least one instruction, so as to implement each step executed by the first IAB base station in the foregoing method embodiments.
- the memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
- the volatile or non-volatile storage device includes, but is not limited to: a magnetic disk or an optical disk, an electrically erasable and programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, a programmable read-only memory (PROM).
- the present disclosure provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information indication method provided by the foregoing method embodiments.
- the present disclosure also provides a computer program product that, when running on a computer, causes the computer to execute the information indication method provided by the foregoing method embodiments.
- FIG. 10 shows a schematic structural diagram of a second IAB base station provided by an exemplary embodiment of the present disclosure.
- the second IAB base station includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.
- the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.
- the receiver 102 and the transmitter 103 may be implemented as one communication component, and the communication component may be a communication chip.
- the memory 104 is connected to the processor 101 through the bus 105.
- the memory 104 may be configured to store at least one instruction, and the processor 101 is configured to execute the at least one instruction, so as to implement each step executed by the second IAB base station in the foregoing method embodiments.
- the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
- the volatile or non-volatile storage device includes, but is not limited to: a magnetic disk or an optical disk, an electrically erasable and programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, a programmable read-only memory (PROM).
- the present disclosure provides a computer-readable storage medium in which at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the information indication method provided by the foregoing method embodiments.
- the present disclosure also provides a computer program product that, when running on a computer, causes the computer to execute the information indication method provided by the foregoing method embodiments.
- the storage medium may be a read-only memory, a magnetic disk or an optical disk, and the like.
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Description
- The present disclosure relates to the field of communication technologies, and more particularly, to information indication methods, information indication devices, a communication system and a computer-readable storage medium.
- An IAB (integrated access and backhaul) base station integrates a radio access link and a radio backhaul link. The radio access link is a communication link between a UE (user equipment) and the IAB base station, and the radio backhaul link is a communication link between the IAB base station and another IAB base station for data backhaul.
- At present, the IAB base station controls the UE's access through access indication information of a cell status, but there is no related technical record regarding how to control the IAB base station. Therefore, how to control the IAB base station has become a hot research topic.
- Related art can be found in:
- LG ELECTRONICS INC: "3GPP TSG-RAN WG2#104; R2-1818415; Access Control for IAB node", 3GPP DRAFT; R2-1818415 ACCESS CONTROL FOR IAB NODE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE; 650, ROUTE DES LUCIOLES; F-06921 SOPHIA-ANTIPOLIS CEDEX; RRANCE, vol. RAN WG2, no. Spokane, USA; 20181112-20181116 12 November 2018 (2018-11-12), XP051557905;
- INTEL CORPORATION: "3GPP TSG-RAN WG1#94; R1-1808691; PHY layer enhancements for NR IAB", 3GPP DRAFT; R1-1808691, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE; 650, ROUTE DES LUCIOLES; F-06921 SOPHIA-ANTIPOLIS CEDEX; RRANCE, vol. RAN WG1 11 August 2018 (2018-08-11), pages 1-13, XP051516066;
- 3GPP TR 38.874 V16.0.0(2018-12): "3GPP TR 38.874 V16.0.0(2018-12); 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Study on Integrated Access and Backhaul; (Release 16)", 3GPP STANDARD; TECHNICAL REPORT; 3GPP TR 38.874, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE; 650, ROUTE DES LUCIOLES; F-06921 SOPHIA-ANTIPOLIS CEDEX; RRANCE, no. V16.0.0, 31 December 2018 (2018-12-31), pages 1-111, XP051591643; and
- 3GPP TS 38.304 V15.2.0(2018-12): "3GPP TR 38.304 V15.2.0 (2018-12); 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; User Equipment (UE) procedures in Idle mode and RRC Inactive state (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.304, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE; 650, ROUTE DES LUCIOLES; F-06921 SOPHIA-ANTIPOLIS CEDEX; RRANCE, no. V15.2.0, 31 December 2018 (2018-12-31), pages 1-28, XP051591812.
- Embodiments of the present disclosure provide information indication methods, information indication devices, a communication system and a computer-readable storage medium which can solve the problem of how to control an IAB base station.
- According to an aspect, there is provided an information indication method, which is performed by a first integrated access and backhaul base station as set out in claim 1. Optional features are set out in claim 2.
- According to another aspect, there is provided an information indication method, which is performed by a second integrated access and backhaul base station as set out in claim 3. Optional features are set out in claim 4.
- According to another aspect, there is provided an information indication device, which is configured in a first integrated access and backhaul base station as set out in claim 5.
- According to another aspect, there is provided an information indication device, which is configured in a second integrated access and backhaul base station as set out in claim 6.
- According to another aspect, there is provided a communication system as set out in claim 7.
- According to another aspect, there is provided a computer-readable storage medium as set out in claim 8.
- The beneficial effects brought about by the technical solutions in the embodiments of this application are as follows.
- In the embodiments of the present disclosure, the first IAB base station sends the indication information. Since the indication information is used for indicating whether access of an other IAB base station to the first IAB base station is allowable, the second IAB base station may determine whether to access the first IAB base station after receiving the indication information. In this way, the access of the other IAB base station is individually controlled through the indication information, that is, the access control of the other IAB base station is separated from that of the UE, which improves the flexibility of access control of the IAB base station.
- In order to explain technical solutions in embodiments of the present disclosure more clearly, the following will briefly introduce drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor
-
FIG. 1 is a schematic diagram showing an implementation environment according to an exemplary embodiment; -
FIG. 2 is a flowchart showing an information indication method according to an exemplary embodiment; -
FIG. 3 is a flowchart showing an information indication method according to another exemplary embodiment; -
FIG. 4 is a flowchart showing an information indication method according to another exemplary embodiment; -
FIG. 5 is a flowchart showing an information indication method according to another exemplary embodiment; -
FIG. 6 is a flowchart showing an information indication method according to another exemplary embodiment; -
FIG. 7 is a schematic structural diagram showing an information indication device according to an exemplary embodiment; -
FIG. 8 is a schematic structural diagram showing an information indication device according to another exemplary embodiment; -
FIG. 9 is a schematic structural diagram showing a first IAB base station 900 provided by an embodiment of the present disclosure; -
FIG. 10 is a schematic structural diagram showing a second IAB base station 1000 provided by an embodiment of the present disclosure. - In order to make objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe embodiments of the present disclosure in detail with reference to the drawings.
- Before describing an information indication method provided by the embodiments of the present disclosure in detail, terms, application scenarios, and implementation environment involved in the embodiments of the present disclosure are briefly described first.
- First, terms involved in the embodiments of the present disclosure is described briefly.
- Backhaul link may be also referred as to a radio backhaul link, which means a communication link between IAB base stations for data backhaul.
- Broadcast information is information carried by a physical broadcast channel (PBCH), and includes master information block ( MIB) information from a higher layer and 8-bit information from layer 1. The layer 1 is generally understood as a physical layer.
- MIB information has a total of A bits (where A is a positive integer), includes a part of information required by a device (such as a UE) to access a base station, such as cellbarred, etc., where the cellbarred is used for indicating an access control status of a cell. Specifically, the MIB information includes 6-bit system frame number (SFN), 1-bit sub-carrier spacing information, 4-bit sub-carrier offset of synchronization signal block (SSB), demodulation reference signal (DMRS) related information, resource information for scheduling a physical downlink control channel (PDCCH) of system information block (SIB), and the like. In addition, the MIB information also includes an idle bit. In a standard, the MIB information is specifically defined as follows:
MIB ::= SEQUENCE { systemFrameNumber BIT STRING (SIZE (6)), subCarrierSpacingCommon ENUMERATED {scs15or60, scs30or120}, ssb-SubcarrierOffset INTEGER (0..15), dmrs-TypeA-Position ENUMERATED {pos2, pos3}, pdcch-ConfigSIB 1 PDCCH-ConfigSIB 1, cellBarred ENUMERATED {barred, notBarred}, intraFreqReselection ENUMERATED {allowed, notAllowed}, spare BIT STRING (SIZE (1)) }
- a first situation: the first cell barring information indicates that access to the first IAB base station is barred, and the second parameter indicates to reserve the cell for other use;
- a second situation: the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use;
- a third situation: the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use;
- a fourth situation: the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, or the second parameter indicates to reserve the cell for other use;
- a fifth situation: the first cell barring information indicates that access to the first IAB base station is not barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use; and
- a sixth situation: the first cell barring information indicates that access to the first IAB base station is not barred, and the second parameter indicates to reserve the cell for other use.
- a first situation: the first parameter indicates not to reserve the cell for operator use, and the second parameter indicates not to reserve the cell for other use; and
- a second situation: the first parameter indicates to reserve the cell for operator use.
a sending
send at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information.
- send the system information, wherein the system information includes a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; and
- send the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the MIB information includes first cell barring information.
when the content of the at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the first reference condition, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- the first cell barring information indicates that access to the first IAB base station is barred, and the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, or the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is not barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is not barred, and the second parameter indicates to reserve the cell for other use.
send the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the indication information is located in the MIB information.
- send the system information, wherein the system information includes a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; and
- send the broadcast information, wherein the broadcast information includes master information block (MIB) information, the MIB information carries second cell barring information, and the second cell barring information is used for indicating whether the first IAB base station is in an access barred status.
- when the second cell barring information indicates that the first IAB base station is in an access non-barred status, and content of the at least one of the first parameter and the second parameter satisfies a second reference condition, the indication information indicates that the access of the other IAB base station is allowable; and
- when the second cell barring information indicates that the first IAB base station is in the access non-barred status, and the content of the at least one of the first parameter and the second parameter does not satisfy the second reference condition, the indication information indicates that the access of the other IAB base station is not allowable.
- the first parameter indicates not to reserve the cell for operator use, and the second parameter indicates not to reserve the cell for other use; and
- the first parameter indicates to reserve the cell for operator use.
send the broadcast information, wherein the broadcast information includes an additional bit other than MIB information, and the indication information is located in the additional bit.
broadcast the indication information.
- a
receiving module 810, configured to receive indication information, wherein the indication information is used for indicating whether access of an other IAB base station to the first IAB base station is allowable; and - a determining
module 820, configured to determine whether to access a first IAB base station based on the indication information.
receive at least one of system information and broadcast information, wherein the at least one of the system information and the broadcast information includes the indication information.
- receive the system information, wherein the system information includes a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use;
- receive the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the MIB information includes first cell barring information; and
- read at least one of the first parameter and the second parameter and the first cell barring information to obtain the indication information.
when the content of the at least one of the first parameter and the second parameter and the content of the first cell barring information do not satisfy the first reference condition, the indication information is used for indicating that the access of the other IAB base station is not allowable.
- the first cell barring information indicates that access to the first IAB base station is barred, and the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is barred, and the first parameter indicates to reserve the cell for operator use, or the second parameter indicates to reserve the cell for other use;
- the first cell barring information indicates that access to the first IAB base station is not barred, and the first parameter indicates to reserve the cell for operator use, and the second parameter indicates to reserve the cell for other use; and
- the first cell barring information indicates that access to the first IAB base station is not barred, and the second parameter indicates to reserve the cell for other use.
- receive the broadcast information, wherein the broadcast information includes master information block (MIB) information, and the indication information is located in the MIB information; and
- read the indication information in the MIB information.
- receive the system information, wherein the system information includes a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use;
- receive the broadcast information, wherein the broadcast information includes master information block (MIB) information, the MIB information carries second cell barring information, and the second cell barring information is used for indicating whether the first IAB base station is in an access barred status; and
- read at least the second cell barring information of the MIB information to obtain the indication information.
- read the second cell barring information of the MIB information to obtain the indication information;
- determine that the indication information indicates that the access of the other IAB base station is not allowable when the second cell barring information indicates that the first IAB base station is in an access barred status; and
- continue to read the at least one of the first parameter and the second parameter to obtain the indication information when the second cell barring information indicates that the first IAB base station is in an access non-barred status.
- when the second cell barring information indicates that the first IAB base station is in the access non-barred status, and content of the at least one of the first parameter and the second parameter satisfies a second reference condition, the indication information indicates that the access of the other IAB base station is allowable; and
- when the second cell barring information indicates that the first IAB base station is in the access non-barred status, and the content of the at least one of the first parameter and the second parameter does not satisfy the second reference condition, the indication information indicates that the access of the other IAB base station is not allowable.
- the first parameter indicates not to reserve the cell for operator use, and the second parameter indicates not to reserve the cell for other use; and
- the first parameter indicates to reserve the cell for operator use.
- receive the broadcast information, wherein the broadcast information includes an additional bit other than MIB information, and the indication information is located in the additional bit; and
- read the indication information in the additional bit.
Claims (8)
- An information indication method, which is performed by a first integrated access and backhaul, IAB, base station, characterized in comprising:sending (201) indication information,wherein the indication information is used for indicating whether access of an other IAB base station is allowable,wherein sending the indication information comprises:
sending system information and broadcast information, wherein the system information and the broadcast information comprises the indication information,wherein:sending the system information and the broadcast information comprises: sending (301) the system information, wherein the system information comprises a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; and sending (302) the broadcast information, wherein the broadcast information comprises master information block, MIB, information, and the MIB information comprises first cell barring information, wherein the first cell barring information and at least one of the first parameter and the second parameter constitute the indication information,
orsending the system information and the broadcast information comprises: sending (501) the system information, wherein the system information comprises a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; and sending (502) the broadcast information, wherein the broadcast information comprises master information block, MIB, information, the MIB information carries second cell barring information, and the second cell barring information is used for indicating whether the first IAB base station is in an access barred status, wherein the second cell barring information of the MIB information and at least one of the first parameter and the second parameter constitute the indication information. - The method as claimed in claim 1, wherein the system information is system information block, SIB, 1 information.
- An information indication method, which is performed by a second integrated access and backhaul, IAB, base station, characterized in comprising:receiving (202) indication information from a first IAB base station, wherein the indication information is used for indicating whether access of an other IAB base station to the first IAB base station is allowable; anddetermining (203, 306, 404, 506, 604) whether to access the first IAB base station based on the indication information,wherein receiving the indication information comprises:receiving system information and broadcast information, wherein the system information and the broadcast information comprises the indication information,whereinreceiving the system information and the broadcast information comprises: receiving (303) the system information, wherein the system information comprises a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; receiving (304) the broadcast information, wherein the broadcast information comprises master information block, MIB, information, and the MIB information comprises first cell barring information; and reading (305) the first cell barring information and at least one of the first parameter and the second parameter to obtain the indication information;
orreceiving the system information and the broadcast information, comprises: receiving (503) the system information, wherein the system information comprises a first parameter and a second parameter, the first parameter is used for indicating whether to reserve a cell for operator use, and the second parameter is used for indicating whether to reserve a cell for other use; receiving (504) the broadcast information, wherein the broadcast information comprises master information block (MIB) information, the MIB information carries second cell barring information, and the second cell barring information is used for indicating whether the first IAB base station is in an access barred status; and reading (505) the second cell barring information and at least one of the first parameter and the second parameter to obtain the indication information. - The method as claimed in claim 3, wherein the system information is system information block, SIB, 1 information.
- An information indication device, which is configured in a first integrated access and backhaul, IAB, base station, and is configured to implement the information indication method as claimed in any one of claims 1-2.
- An information indication device, which is configured in a second integrated access and backhaul, IAB, base station, and is configured to implement the information indication method as claimed in any one of claims 3-4.
- A communication system, comprising a first integrated access and backhaul, IAB, base station and a second IAB base station, wherein the first IAB base station comprises the device as claimed in claim 5, and the second IAB base station comprises the device as claimed in claim 6.
- A computer-readable storage medium having instructions stored thereon, wherein the instructions, when being executed by a processor of a first integrated access and backhaul, IAB, base station, implement steps of the method as claimed in any one of claims 1 to 2, or, when being executed by a processor of a second integrated access and backhaul, IAB, base station, implement steps of the method as claimed in any one of claims 3 to 4.
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PCT/CN2019/075287 WO2020164146A1 (en) | 2019-02-15 | 2019-02-15 | Information indication method, apparatus, system and device, and storage medium |
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EP3913935A1 EP3913935A1 (en) | 2021-11-24 |
EP3913935A4 EP3913935A4 (en) | 2022-01-26 |
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US (1) | US12096340B2 (en) |
EP (1) | EP3913935B1 (en) |
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CN114531693A (en) * | 2020-11-02 | 2022-05-24 | 维沃移动通信有限公司 | Transmission parameter management method and device and electronic equipment |
CN115968004A (en) * | 2021-10-13 | 2023-04-14 | 华为技术有限公司 | Communication method |
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CN101790197B (en) * | 2009-01-22 | 2015-09-16 | 中兴通讯股份有限公司 | Based on the scan request sending method of multicarrier system |
CN102215594B (en) * | 2011-06-24 | 2017-12-12 | 中兴通讯股份有限公司 | Dispatching method and device |
CN102355698B (en) * | 2011-09-28 | 2015-03-25 | 华为技术有限公司 | Communication method based on base station control device group, device and system |
CN103581960B (en) * | 2012-07-27 | 2019-02-12 | 中兴通讯股份有限公司 | Capability indication information processing method and processing device |
CN105872943A (en) * | 2015-01-23 | 2016-08-17 | 普天信息技术有限公司 | D2D service notification method and device |
EP3687240B1 (en) * | 2017-10-18 | 2023-08-23 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and base station for implementing wireless backhaul |
CN110636584B (en) * | 2018-06-21 | 2021-07-16 | 维沃移动通信有限公司 | Access method and device |
US11129224B2 (en) * | 2018-09-11 | 2021-09-21 | Qualcomm Incorporated | Integrated access backhaul link management during loss of uplink synchronization |
WO2020122247A1 (en) * | 2018-12-14 | 2020-06-18 | Sharp Kabushiki Kaisha | Methods and apparatus for cell barring in wireless relay networks |
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Non-Patent Citations (1)
Title |
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3GPP TS 22.261 V16.6.0 (2018-12): "3GPP TS 22.261 V16.6.0 (2018-12); 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Service requirements for the 5G system; Stage 1 (Release 16)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 22.261, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG1, no. V16.6.0, 28 December 2018 (2018-12-28), pages 1 - 73, XP051591580 * |
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CN113115239A (en) | 2021-07-13 |
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EP3913935A4 (en) | 2022-01-26 |
US20210368424A1 (en) | 2021-11-25 |
WO2020164146A1 (en) | 2020-08-20 |
CN112335267A (en) | 2021-02-05 |
EP3913935A1 (en) | 2021-11-24 |
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